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Synonyms for Moral (same or very similar meaning)

WordNet sense 1 (the significance of a story or event):
lesson

WordNet sense 2 (guided by or in accordance with conscience or sense of right and wrong):
conscientious

WordNet sense 3 (adhering to ethical and moral principles):
ethical, honorable, honourable

WordNet sense 4 (in conformance with justice or law or morality):
right

WordNet sense 5 (involving the mind or an intellectual process):
mental

WordNet sense 6 (morally justified):
righteous

WordNet sense 7 (abstaining from unlawful sexual intercourse):
chaste


From the ODE community, based on WordNetadd/edit